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1. 发明授权

US08052684B2 Irrigated ablation catheter having parallel external flow and proximally tapered electrode 有权
标题翻译：灌注消融导管具有平行的外部流动和近端锥形电极
公开(公告)号：US08052684B2
公开(公告)日：2011-11-08
申请号：US11948429
申请日：2007-11-30
申请人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
发明人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
IPC分类号： A61B18/18
CPC分类号： A61B18/1492 , A61B2018/00011 , A61B2018/00029 , A61B2018/00702 , A61B2018/00744 , A61B2018/00791 , A61B2018/00815 , A61B2018/00821
摘要： Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at a taper angle generally in parallel with a proximally tapered portion of the tip electrode to provide improved electrode surface cooling. In one embodiment, an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface, the distal member including an electrode. The external surface of the distal member has a tapered proximal portion narrowing toward the proximal member at a taper angle with respect to a longitudinal axis of the distal member. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet in a distal direction at an angle substantially equal to the taper angle to produce an external flow that is generally parallel to the tapered proximal portion of the external surface of the distal member.
摘要翻译：本发明的实施例提供了一种具有冲洗流体的灌溉导管，该冲洗流体以尖角大致平行于尖端电极的近端锥形部分的锥角定向，以提供改进的电极表面冷却。在一个实施例中，一种与灌溉导管装置一起使用的灌溉消融电极组件包括近端构件，其具有用于流体的至少一个通道，其中出口设置在近端构件的外表面处; 以及与所述近端构件连接并具有外表面的远侧构件，所述远端构件包括电极。远侧构件的外表面具有相对于远侧构件的纵向轴线以锥角朝向近端构件变窄的锥形近侧部分。近端构件的至少一个通道构造成以大致等于锥角的角度在远侧方向上引导流体流过出口，以产生大体平行于外表面的锥形近端部分的外部流动的远端构件。

2. 发明授权

US08585697B2 Irrigated ablation catheter assembly having a flow member to create parallel external flow 有权
标题翻译：灌注消融导管组件具有流动构件以产生平行的外部流动
公开(公告)号：US08585697B2
公开(公告)日：2013-11-19
申请号：US13615125
申请日：2012-09-13
申请人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
发明人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00029 , A61B2218/002
摘要： Irrigated ablation catheter assemblies and methods of facilitating parallel irrigation fluid flow along irrigated assemblies includes a catheter, an irrigated ablation electrode assembly, a flow member, and a catheter shaft having a fluid lumen. The electrode assembly includes at least one irrigation passageway and a distal portion. The proximal portion can include a proximal member and the distal portion can include a distal member which is connected to the proximal member. The proximal end of the flow member couples to the catheter shaft and the distal end of the flow member is disposed about the proximal portion of the assembly. Fluid flow is guided at least in part by the member and traverses the outer surface of the proximal portion along the outer surface of the distal portion substantially parallel with the longitudinal axis of the electrode assembly.
摘要翻译：灌注消融导管组件和促进沿着灌溉组件的平行冲洗流体流动的方法包括导管，灌洗消融电极组件，流动构件和具有流体腔的导管轴。电极组件包括至少一个冲洗通道和远端部分。近端部分可以包括近端部件，并且远端部分可以包括远端部件，该远端部件连接到近端部件。流动构件的近端耦合到导管轴，并且流动构件的远端围绕组件的近侧部分设置。至少部分地由构件引导流体流动，并且沿着远端部分的外表面横穿近端部分的外表面，其基本上平行于电极组件的纵向轴线。

3. 发明授权

US08273082B2 Irrigated ablation catheter assembly having a flow member to create parallel external flow 有权
标题翻译：灌注消融导管组件具有流动构件以产生平行的外部流动
公开(公告)号：US08273082B2
公开(公告)日：2012-09-25
申请号：US11962623
申请日：2007-12-21
申请人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
发明人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00029 , A61B2218/002
摘要： The invention relates to irrigated ablation catheter assemblies and methods of facilitating parallel irrigation fluid flow along irrigated assemblies. An irrigated catheter assembly according to an embodiment includes a catheter, an irrigated ablation electrode assembly, and a flow member. The catheter includes a catheter shaft having a fluid lumen. The irrigated ablation electrode assembly includes a proximal portion having at least one irrigation passageway and a distal portion. The proximal portion of the electrode assembly may include a proximal member and the distal portion of the electrode assembly may include a distal member which is connected to the proximal member. The proximal end of the flow member is coupled or connected to the catheter shaft and the distal end of the flow member is disposed about the proximal portion of the electrode assembly. Fluid flows through the irrigated electrode assembly and is guided, at least in part, along the outer surface of the proximal portion by the flow member towards the distal portion along the outer surface of the distal portion substantially parallel with the longitudinal axis of the electrode assembly.
摘要翻译：本发明涉及冲洗消融导管组件以及促进沿着灌溉组件的平行灌溉流体流动的方法。根据实施例的灌溉导管组件包括导管，灌溉消融电极组件和流动构件。导管包括具有流体腔的导管轴。灌溉消融电极组件包括具有至少一个冲洗通道和远端部分的近端部分。电极组件的近端部分可以包括近端构件，并且电极组件的远端部分可以包括连接到近端构件的远端构件。流动构件的近端联接或连接到导管轴，并且流动构件的远端围绕电极组件的近侧部分设置。流体流过灌溉电极组件，并且至少部分地沿近端部分的外表面沿着远端部分的外表面朝向远端部分被引导，该远端部分基本上平行于电极组件的纵向轴线。

4. 发明申请

US20090143779A1 Irrigated ablation catheter having parallel external flow and proximally tapered electrode 有权
标题翻译：灌注消融导管具有平行的外部流动和近端锥形电极
公开(公告)号：US20090143779A1
公开(公告)日：2009-06-04
申请号：US11948429
申请日：2007-11-30
申请人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
发明人： Huisun Wang , Christopher J. Geurkink , Harry Puryear
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00011 , A61B2018/00029 , A61B2018/00702 , A61B2018/00744 , A61B2018/00791 , A61B2018/00815 , A61B2018/00821
摘要： Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at a taper angle generally in parallel with a proximally tapered portion of the tip electrode to provide improved electrode surface cooling. In one embodiment, an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface, the distal member including an electrode. The external surface of the distal member has a tapered proximal portion narrowing toward the proximal member at a taper angle with respect to a longitudinal axis of the distal member. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet in a distal direction at an angle substantially equal to the taper angle to produce an external flow that is generally parallel to the tapered proximal portion of the external surface of the distal member.
摘要翻译：本发明的实施例提供了一种具有冲洗流体的灌溉导管，该冲洗流体以尖角大致平行于尖端电极的近端锥形部分的锥角定向，以提供改进的电极表面冷却。在一个实施例中，一种与灌溉导管装置一起使用的灌溉消融电极组件包括近端构件，其具有用于流体的至少一个通道，其中出口设置在近端构件的外表面处; 以及与所述近端构件连接并具有外表面的远侧构件，所述远端构件包括电极。远侧构件的外表面具有相对于远侧构件的纵向轴线以锥角朝向近端构件变窄的锥形近侧部分。近端构件的至少一个通道构造成以大致等于锥角的角度在远侧方向上引导流体流过出口，以产生大体平行于外表面的锥形近端部分的外部流动的远端构件。

5. 发明授权

US10105177B2 Irrigated ablation electrode assembly having off-center irrigation passageway 有权
公开(公告)号：US10105177B2
公开(公告)日：2018-10-23
申请号：US12347270
申请日：2008-12-31
申请人： Huisun Wang , Christopher J. Geurkink
发明人： Huisun Wang , Christopher J. Geurkink
IPC分类号： A61B18/18 , A61B18/14 , A61M25/00 , A61B17/00 , A61B18/00
摘要： An irrigated ablation catheter includes a shaft and an electrode assembly affixed to a distal end of the shaft. The distal electrode assembly includes a manifold and an ablation electrode affixed together and extending along a center axis. The electrode has a distal irrigation passageway extending therethrough to an opening at a distal tip of the electrode. The opening of the irrigation passageway is offset in distance from the center axis, and allows a thermal sensor such as a thermocouple to be located in a sensor cavity in the electrode on or near the center axis. One variation involves providing a pair of distal irrigation passageways through the electrode where both of the openings of the passageways are offset from the center axis. The thermal sensor in this variation is located in the sensor cavity substantially on the center axis.

6. 发明申请

US20100168729A1 IRRIGATED ABLATION ELECTRODE ASSEMBLY HAVING OFF-CENTER IRRIGATION PASSAGEWAY 审中-公开
标题翻译：具有非中心灌溉通道的灌溉电极组件
公开(公告)号：US20100168729A1
公开(公告)日：2010-07-01
申请号：US12347270
申请日：2008-12-31
申请人： Huisun Wang , Christopher J. Geurkink
发明人： Huisun Wang , Christopher J. Geurkink
IPC分类号： A61B18/18 , A61B18/14
CPC分类号： A61B18/1492 , A61B2017/00084 , A61B2017/00088 , A61B2017/00092 , A61B2018/00011 , A61B2018/00029 , A61B2018/00577 , A61B2018/00702 , A61B2018/00791 , A61B2018/00797 , A61B2018/00809 , A61B2018/00815 , A61B2018/00821 , A61B2218/002 , A61M25/0069 , A61M25/007 , Y10T29/49826
摘要： An irrigated ablation catheter includes a shaft and an electrode assembly affixed to a distal end of the shaft. The distal electrode assembly includes a manifold and an ablation electrode affixed together and extending along a center axis. The electrode has a distal irrigation passageway extending therethrough to an opening at a distal tip of the electrode. The opening of the irrigation passageway is offset in distance from the center axis, and allows a thermal sensor such as a thermocouple to be located in a sensor cavity in the electrode on or near the center axis. One variation involves providing a pair of distal irrigation passageways through the electrode where both of the openings of the passageways are offset from the center axis. The thermal sensor in this variation is located in the sensor cavity substantially on the center axis.
摘要翻译：灌注消融导管包括固定到轴的远端的轴和电极组件。远端电极组件包括一个歧管和一个固定在一起并沿中心轴线延伸的消融电极。电极具有延伸通过其延伸到电极远侧末端处的开口的远端冲洗通道。冲洗通道的开口偏离与中心轴线的距离，允许诸如热电偶之类的热传感器位于中心轴上或附近的电极中的传感器腔中。一个变型涉及提供一对穿过电极的远端冲洗通道，其中通道的两个开口都偏离中心轴线。该变型中的热传感器位于传感器腔体中，基本上位于中心轴线上。

7. 发明申请

US20120150175A1 Irrigated ablation electrode assembly and method for control of temperature 有权
标题翻译：灌注消融电极组件及温度控制方法
公开(公告)号：US20120150175A1
公开(公告)日：2012-06-14
申请号：US13402451
申请日：2012-02-22
申请人： Huisun Wang , Jeremy D. Dando , Harry Puryear
发明人： Huisun Wang , Jeremy D. Dando , Harry Puryear
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2017/00084 , A61B2018/00577 , A61B2218/002
摘要： Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at target areas where coagulation is more likely to occur so as to minimize blood coagulation and the associated problems. In one embodiment, an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface. The distal member includes an electrode. The external surface of the proximal member and the external surface of the distal member meet at an intersection. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection.
摘要翻译：本发明的实施方案提供了一种具有冲洗流体的灌溉导管，该冲洗流体被引导到更可能发生凝结的目标区域，从而使血液凝固和相关问题最小化。在一个实施例中，一种与灌溉导管装置一起使用的灌溉消融电极组件包括近端构件，其具有用于流体的至少一个通道，其中出口设置在近端构件的外表面处; 以及与所述近端构件连接并具有外表面的远侧构件。远侧构件包括电极。近端构件的外表面和远端构件的外表面在相交处相交。近端构件的至少一个通道构造成将流体流动引导通过邻近交叉点的区域。

8. 发明申请

US20080071267A1 Irrigated ablation electrode assembly and method for control of temperature 有权
标题翻译：灌注消融电极组件及温度控制方法
公开(公告)号：US20080071267A1
公开(公告)日：2008-03-20
申请号：US11948362
申请日：2007-11-30
申请人： Huisun Wang , Jeremy Dando , Harry Puryear
发明人： Huisun Wang , Jeremy Dando , Harry Puryear
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2017/00084 , A61B2018/00577 , A61B2218/002
摘要： Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at target areas where coagulation is more likely to occur so as to minimize blood coagulation and the associated problems. In one embodiment, an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface. The distal member includes an electrode. The external surface of the proximal member and the external surface of the distal member meet at an intersection. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection.
摘要翻译：本发明的实施方案提供了一种具有冲洗流体的灌溉导管，该冲洗流体被引导到更可能发生凝结的目标区域，从而使血液凝固和相关问题最小化。在一个实施例中，一种与灌溉导管装置一起使用的灌溉消融电极组件包括近端构件，其具有用于流体的至少一个通道，其中出口设置在近端构件的外表面处; 以及与所述近端构件连接并具有外表面的远侧构件。远侧构件包括电极。近端构件的外表面和远端构件的外表面在相交处相交。近端构件的至少一个通道构造成将流体流动引导通过邻近交叉点的区域。

9. 发明申请

US20080091193A1 Irrigated ablation catheter having magnetic tip for magnetic field control and guidance 审中-公开
标题翻译：灌注消融导管具有磁尖用于磁场控制和引导
公开(公告)号：US20080091193A1
公开(公告)日：2008-04-17
申请号：US11953615
申请日：2007-12-10
申请人： James Kauphusman , Huisun Wang , Jeremy Dando , Harry Puryear
发明人： James Kauphusman , Huisun Wang , Jeremy Dando , Harry Puryear
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00577 , A61B2018/00791 , A61B2034/2051 , A61B2218/002
摘要： Embodiments of the present invention provide an irrigated ablation electrode assembly for use with an irrigated catheter device comprises at least one passageway for a fluid with an outlet disposed at an external surface of the electrode assembly; a permanent magnet; a shield separating the permanent magnet from the at least one passageway and from an exterior, the shield being substantially less oxidizable than the permanent magnet; and an electrode having an external electrode surface. A catheter guidance control and imaging system drives the permanent magnet to guide and control the catheter tip. In specific embodiments, the irrigation fluid flow paths through the electrode assembly are thermally insulated from the electrode and temperature sensor. The irrigation fluid is directed at target areas where coagulation is more likely to occur. One or more monitoring electrodes are provided for mapping or other monitoring functions.
摘要翻译：本发明的实施例提供了一种与灌溉导管装置一起使用的灌溉消融电极组件，其包括用于流体的至少一个通道，其中出口设置在电极组件的外表面处; 永久磁铁将所述永磁体与所述至少一个通道和外部分离的屏蔽件，所述屏蔽件比所述永磁体基本上更不可氧化; 和具有外部电极表面的电极。导管引导控制和成像系统驱动永磁体引导和控制导管尖端。在具体实施例中，穿过电极组件的冲洗流体流动路径与电极和温度传感器热绝缘。冲洗液被引导到更可能发生凝结的目标区域。提供一个或多个监视电极用于映射或其他监视功能。

10. 发明申请

US20130072929A1 Irrigated ablation catheter assembly having a flow member to create parallel external flow 有权
公开(公告)号：US20130072929A1
公开(公告)日：2013-03-21
申请号：US13615125
申请日：2012-09-13
申请人： Huisun Wang , Christopher J. Geurknk , Harry Puryear
发明人： Huisun Wang , Christopher J. Geurknk , Harry Puryear
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00029 , A61B2218/002
摘要： Irrigated ablation catheter assemblies and methods of facilitating parallel irrigation fluid flow along irrigated assemblies includes a catheter, an irrigated ablation electrode assembly, a flow member, and a catheter shaft having a fluid lumen. The electrode assembly includes at least one irrigation passageway and a distal portion. The proximal portion can include a proximal member and the distal portion can include a distal member which is connected to the proximal member. The proximal end of the flow member couples to the catheter shaft and the distal end of the flow member is disposed about the proximal portion of the assembly. Fluid flow is guided at least in part by the member and traverses the outer surface of the proximal portion along the outer surface of the distal portion substantially parallel with the longitudinal axis of the electrode assembly.

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